
// SMS4 encryption/decryption definition
// Parameter :
//		Input 	- the incoming message packet
//		Ouput 	- the result ouput
//		rk		- key
void SMS4Crypt(unsigned char *Input, unsigned char *Output, unsigned int *rk);

// SMS4 key extend algorithm
void SMS4KeyExt(unsigned char *Key, unsigned int *rk, unsigned int CryptFlag);
